Jacob g



(No Model.)

J. 0. REED. I DEVICE FOR AUTOMATICALLY CLOSING DOORS T0 ELEVATOR WELLS.

N0 452,415. Patented May 19, 1891.

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ANS

UNITED STATES PATENT OFFICE.

' JACOB C. REED, OF SIOUX CITY, IOIVA.

DEVICE FOR AUTOMATICALLY CLOSING DOORS T0 ELEVATOR-WELLS.

SPECIFICATION forming part of Letters Patent No. 452,415, dated May 19,1891.

Application filed Iebruary'lO, 1891. Serial No. 880,893. (No model.)

To aZZ whom it mag concern.-

Be it known that I, JACOB C. REED, a citizen of the United States,residing at Sioux City, in the county of W'oodbury and State of Iowa,have invented certain new and useful Improvements on an AutomaticElevator- Door Closer; and I do declare the following to be afull,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and toftheletters of reference marked thereon, which form a part of thisspecification.

My invention relates to door-closing devices, and is intended as animprovement upon the invention for which I filed an application forpatent dated January 24, 1891.

The object of this invention is to provide against all accidents thatmight possibly occur from the use of my previous invention when theelevator-door happens to get partly open from the wearing away of thecatch or loosening of the door-fastenings, or in any other manner whenthe cage is away from the door.

This invention provides means for preventing the rod R,attached to thecage, from breaking or catching in the elevator-door when saidelevator-door happens in any way to get open when the cage is away fromit, as above specified.

My invention therefore consists in the novel construction of the partsand their combination, as will be hereinafter fully described, andparticularly pointed out in the claim.

I have fully and clearly illustrated my in vention in the accompanyingdrawings,where- Figure 1 is an exterior View showing the elevator-doorpartly closed, with the elevatorcage descending, and showing theoperation of closing the elevator-door. Fig. 2 is an interior view ofthe same, showing the rod without the elevator-cage. Fig. 8 is anenlarged front view showing operation of rod It upon rod 1 by means ofroller 00. Fig. +1: is a side view of the same, also showing asectionthrough portion of door and elevator-cage.

Referring now to the illustrations, wherein like parts are designated bythe same letters of reference, as in my previous application,

A A designate corner-posts of an elevatorshaft.

B designates the elevator-cage, Z) the pulley, and c the cable, of theordinary style of construction used to raise and lower theelevator-cage.

O designates the elevator-door; dc, grooved wheels, upon which the doorslides backward and forward upon rod (1.

a a designate grooved wheels placed at the top of the door and adaptedto slide back Ward and forward upon the under side of rod d to keep thedoor in position.

It is a flat rod with rounded edges, and having a bend in the center, asshown in the drawings, to allow the elevator-door to be opened withoutinterfering and having its ends bent to allow them to freely pass by thesheave end when the elevator-cage is ascending or descending. Rod R issecured to the outside of the elevator-cage and set off a littledistance fromit by means of suitable bolts, all as previously describedin my prior ap plication.

Referring now to the improvement which forms the subject of thisapplication, 3 and z designate fiat rods having rounded edges, and

corresponding in size and inclination, and intended to be placed on theelevator-door C in a manner to correspond with the placing of the rod Ron the elevator-cage. The rods y andz are fastened to the elevator-doorO and set off a little distance from it by means of suitable bolts insuch a manner that the inside ends of said rods, where they verge towardthe center, do not come snug together, but allow a small openingbetween. In this opening is set a roller X, which is secured to the doorin a suitable manner, and which takes the place of roller 02, referredto in my prior application. The rod R is provided at the point ofcurvature of its upperand lower ends with the grooved rollers 00 00.

It willbe seen that the improvement which I claim in this application isthe providing of rod R with the grooved rollers a: a: at the point ofcurvature at its upper and lower ends, and the providing of theelevator-door O with the rods y and 2, between which is placed theroller X,suitably fastened to the door. On the rod R grooved rollers oranti-friction rollers may be used; but they are intended to be smallerin size than the roller X between the rods 3 and 2, so that if theclevater-doorhappens to get opened in any manner while the elevator-cageis away from it the result will be as follows: As the elevator-cageascends or descends, the grooved rollersocac, provided on rod R of thecage, will follow up or down on the rods y and 5, as the case may be,and move freely into and over the large roller X of the elevator-door C,preventing the rod R from catching into or breaking the elevatordoor, asit might otherwise do in such case. X is to be a large deep-groovedroller. m 00 are to be small grooved rollers.

The operation is readily seen from the above description. Rollers a: tomay be antifriction rollers or slightly-grooved rollers, as either willoperate satisfactorily, as the rollers used must follow the rods y and 2if the rods are all placed as described.

JACOB (J. REED.

Witnesses:

GUY C. R1011, L. L. CARPENTER.

